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SAA5191 - Teletext video processor

General Description

The integrated 16 : 9 compressor is an IC which compresses the active part of a video line by a factor of 4⁄3 from, for example, 52 µs to 39 µs.

This is necessary to display 4:3 video software on a 16 : 9 tube in the correct proportion.

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Key Features

  • Fixed horizontal compression by a factor of video standards.
  • 5 MHz bandwidth.
  • Bypass function.
  • Inputs for luminance and chrominance of side panels.
  • Standard video inputs and outputs (Y, (B.
  • Y) and (R.
  • Y)).
  • Horizontal and vertical sync signals are not processed.
  • Pre filters and post filters on chip.

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Other Datasheets by Philips Semiconductors (now NXP Semiconductors)

Part Number Description
SAA5231 Teletext video processor
SAA5233 Dual standard PDC decoder
SAA5244A Integrated VIP and teletext decoder IVT1.1
SAA5246A Integrated VIP and Teletext IVT1.0
SAA5540PS TV microcontrollers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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INTEGRATED CIRCUITS DATA SHEET SAA4981 Monolithic integrated 16 : 9 compressor Preliminary specification Supersedes data of May 1994 File under Integrated Circuits, IC02 1995 Oct 05 Philips Semiconductors Preliminary specification Monolithic integrated 16 : 9 compressor FEATURES • Fixed horizontal compression by a factor of video standards • 5 MHz bandwidth • Bypass function • Inputs for luminance and chrominance of side panels • Standard video inputs and outputs (Y, (B−Y) and (R−Y)) • Horizontal and vertical sync signals are not processed • Pre filters and post filters on chip. GENERAL DESCRIPTION The integrated 16 : 9 compressor is an IC which compresses the active part of a video line by a factor of 4⁄3 from, for example, 52 µs to 39 µs.